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System Administration Guide: Oracle Solaris Containers-Resource Management and Oracle Solaris Zones     Oracle Solaris 10 1/13 Information Library
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Part I Resource Management

1.  Introduction to Solaris 10 Resource Management

2.  Projects and Tasks (Overview)

3.  Administering Projects and Tasks

4.  Extended Accounting (Overview)

5.  Administering Extended Accounting (Tasks)

6.  Resource Controls (Overview)

7.  Administering Resource Controls (Tasks)

8.  Fair Share Scheduler (Overview)

9.  Administering the Fair Share Scheduler (Tasks)

10.  Physical Memory Control Using the Resource Capping Daemon (Overview)

11.  Administering the Resource Capping Daemon (Tasks)

12.  Resource Pools (Overview)

What's New in Resource Pools and Dynamic Resource Pools?

Introduction to Resource Pools

Introduction to Dynamic Resource Pools

About Enabling and Disabling Resource Pools and Dynamic Resource Pools

Resource Pools Used in Zones

When to Use Pools

Resource Pools Framework

/etc/pooladm.conf Contents

Pools Properties

Implementing Pools on a System

project.pool Attribute

SPARC: Dynamic Reconfiguration Operations and Resource Pools

Creating Pools Configurations

Directly Manipulating the Dynamic Configuration

poold Overview

Managing Dynamic Resource Pools

Configuration Constraints and Objectives

Configuration Constraints

pset.min Property and pset.max Property Constraints

cpu.pinned Property Constraint

pool.importance Property Constraint

Configuration Objectives

wt-load Objective

The locality Objective

utilization Objective

Configuration Objectives Example

poold Properties

poold Features That Can Be Configured

poold Monitoring Interval

poold Logging Information

Configuration Information Logging

Monitoring Information Logging

Optimization Information Logging

Logging Location

Log Management With logadm

How Dynamic Resource Allocation Works

About Available Resources

Determining Available Resources

Identifying a Resource Shortage

Determining Resource Utilization

Identifying Control Violations

Determining Appropriate Remedial Action

Using poolstat to Monitor the Pools Facility and Resource Utilization

poolstat Output

Tuning poolstat Operation Intervals

Commands Used With the Resource Pools Facility

13.  Creating and Administering Resource Pools (Tasks)

14.  Resource Management Configuration Example

15.  Resource Control Functionality in the Solaris Management Console

Part II Zones

16.  Introduction to Solaris Zones

17.  Non-Global Zone Configuration (Overview)

18.  Planning and Configuring Non-Global Zones (Tasks)

19.  About Installing, Halting, Cloning, and Uninstalling Non-Global Zones (Overview)

20.  Installing, Booting, Halting, Uninstalling, and Cloning Non-Global Zones (Tasks)

21.  Non-Global Zone Login (Overview)

22.  Logging In to Non-Global Zones (Tasks)

23.  Moving and Migrating Non-Global Zones (Tasks)

24.  Oracle Solaris 10 9/10: Migrating a Physical Oracle Solaris System Into a Zone (Tasks)

25.  About Packages and Patches on an Oracle Solaris System With Zones Installed (Overview)

26.  Adding and Removing Packages and Patches on an Oracle Solaris System With Zones Installed (Tasks)

27.  Oracle Solaris Zones Administration (Overview)

28.  Oracle Solaris Zones Administration (Tasks)

29.  Upgrading an Oracle Solaris 10 System That Has Installed Non-Global Zones

30.  Troubleshooting Miscellaneous Oracle Solaris Zones Problems

Part III lx Branded Zones

31.  About Branded Zones and the Linux Branded Zone

32.  Planning the lx Branded Zone Configuration (Overview)

33.  Configuring the lx Branded Zone (Tasks)

34.  About Installing, Booting, Halting, Cloning, and Uninstalling lx Branded Zones (Overview)

35.  Installing, Booting, Halting, Uninstalling and Cloning lx Branded Zones (Tasks)

36.  Logging In to lx Branded Zones (Tasks)

37.  Moving and Migrating lx Branded Zones (Tasks)

38.  Administering and Running Applications in lx Branded Zones (Tasks)



poold Overview

The pools resource controller, poold, uses system targets and observable statistics to preserve the system performance goals that you specify. This system daemon should always be active when dynamic resource allocation is required.

The poold resource controller identifies available resources and then monitors workloads to determine when the system usage objectives are no longer being met. poold then considers alternative configurations in terms of the objectives, and remedial action is taken. If possible, the resources are reconfigured so that objectives can be met. If this action is not possible, the daemon logs that user-specified objectives can no longer be achieved. Following a reconfiguration, the daemon resumes monitoring workload objectives.

poold maintains a decision history that it can examine. The decision history is used to eliminate reconfigurations that historically did not show improvements.

Note that a reconfiguration can also be triggered asynchronously if the workload objectives are changed or if the resources available to the system are modified.